Half to thomas c



(No Model.)

F. LEADBEATER.

SMOKE CONSUMER. No. 888,885. Patented Sept. 4, 1888.

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* UNITED STATES PATENT tries,

FREDERlCK LEADBEATER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE- HALF TOTHOMAS C. ROGERS, OF SAME PLACE.

SMOKE-CONSUMER.

SPECIFICATION forming part of Letters Patent No. 388,885, datedSeptember 4, 1888.

Application filed April 5, 1888. Serial No. 269,648. (No model.)

To all whom, it may concern.-

Be it known that I, FREDERICK LEAD- BEATER, a citizen of the UnitedStates, residing at Detroit, county of \Vayne, State of Michigan, haveinvented a certain new and useful Improvement in Smoke Consumers; and Ideclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

My invention relates to certain new and use ful improvements insmoke-consuming furnaces; and it consists of the construction of devicesand appliances, together with their combinations and arrangements, asmore fully hereinafter described, and more particularly pointed out inthe claim.

In the drawings illustrating my invention, submitted herewith, Figure 1is a vertical longitudinal section of a furnace embodying my invention.Fig. 2 is a front elevation of the same. Fig. 3 is a detail view of oneof the inlet-fines shown indotted lines in Fig. 2.

The great points to be secured in a so-called smoke-consumer, as is wellknown, is to supply a sufficient quantity of oxygen to thecombustion-chamber to render the combus' tion of the gases perfect, andthereby, in reality, to prevent the formation of smoke, or to render itsignition complete. To accomplish these results in a most efficient andsatisfactory manner, and at the same time by an economical device whichmay readily be applied to any ordinary furnace without injury andwithout undue waste of time, is the purpose of my invention.

I carry out my invention as follows:

A represents the combustion-chamber of a furnace; B, the grate. G is thefront wall of the combustion chamber; 0 C the doors thereto. These partsmay be of any ordinary construction.

Through the wall of the combustion-cham her, and preferably through thefront wall, I introduce one or more does, D, communicating with thecombustion-chamber, and also with an exterior air box or conduit, E,which leads, preferably, to the exterior of the furnace-roomas, forinstance, through an ad jacent window, -Fso as conduct any desiredsupply of fresh air into the combustion-chamber.

Where a series of dues D are desired to conduct the air from the conduitinto the combustionchamber, the inner end of the said conduit may beextended across the front of the furnace as a manifold, E, from whichthe individual flues D lead through the wall of the furnace and openinto the combustionchamber. This arrangement admits the air upon thefront of the fuel-bed. I prefer, also, to contract the inner ends of thefines, as shown at (I, so as to spread the admitted air in a sheet overthe fuel-bed and more uniformly distribute the airthereupon, so as morereadily to unite with the products of combustion and facilitatetheircomplete consumption.

It will be convenient, also, to lead the supply-conduit so as tocommunicate with the fines above the door to the combustionchamher, andconsequently it will be desirable to extend the fines through the wallat an angle downward, so as to discharge the air into proper proximityto the fuel-bed. I prefer, therefore, to construct the fines each withan elbow, as at d, the longer arm of the fine being extended at anobtuse angle to the shorter arm, the latter arm being located,preferably,

' in a horizontal direction to direct the air substantially straightupon the fuel-bed. The angular direction of the longer arm will carrythe flue through the wall in a diagonal direction and will prevent thesaid flue becoming accidentally detached, as will be readily seen in theaccompanying drawings.

I prefer to provide the supply pipe or conduit with any suitableregulating valve or damper, 6, whereby the supply of air admitted to thecombustion-chamber may be prop erly controlled.

In some furnaces a single flue D may sufitice. In others a series oflines will more evenly and satisfactorily distribute the air in thefurnace. By leading the supply-pipe to the exterior the draft willinsure an abundant quan tity of fresh air, thereby making the combustionperfect and preventing the escape of smoke.

erably made in a single piece, the elbow above gradual taper from itsmouth outward,wherementioned being merely an angle in the flue; by theinflowing air is caused to spread over 15 but I do not limit myself toany particular the fire in an even sheet substantially as set 5 shape orconstruction of the flue alone, alforth.

though it is preferably made angular. In testimony whereoflsignthisspecifieation What I claim is in the presence of two witnesses.

An air flue constructed with an an le and y extending diagonally throughthe wall ofua FREDERICK LEADBEATER' It will beunderstood that the fluesare pref- I and extended horizontally, and having a a --IO furnace andcommunicating with a combus- Witnesses:

tion-chamber and an air-supply, the said air- '1. 0. ROGERS, flue havingits mouth contracted vertically N. S. WRIGHT.

